1.
3
rocket in the shape of a cone is attached to a
Cylinder with the same base radius. The cone has a
slant height of 15 m. The cylinder has a base diameters
of 12 m and a height of 42 m. Find the total surface
area of the rocket
15 m
12 m

1978.2 sq m

Step-by-step explanation:

Step 1:

Surface area of a cone (leaving the base which is attached to the cylinder is pi * r * l

l = 15 m

r = 6 m (Given diameter = 12)

So, area = pi * 15* 6 = 90 pi= 282.6 m sq.

Step 2 :

Area of the given cylinder which is part of the rocket is 2*pi*r*h+pi*r*r (leaving the top part of the cylinder.  

So the required area = 2*pi* 6* 42 + pi*6*6 = pi(504+36) = 540 pi =540 * 3.14 = 1695.6 sq m

Step 3 :

The area of the rocket is the 282.6+1695.6 = 1978.2 sq m

5y

step-by-step explanation:

step-by-step explanation:

i found the life tables for the year 2012. 

life table of males at age 30. probability of dying between ages x and x+1

total population:  

29–30 . . . . . . . . . . . . 0.001030

30–31 . . . . . . . . . . . . 0.001061

males:  

29–30 . . . . . . . . . . . . 0.001420

30–31 . . . . . . . . . . . . 0.001448

white population

29–30 . . . . . . . . . . . . 0.001005

30–31 . . . . . . . . . . . . 0.001037

white males

29–30 . . . . . . . . . . . . 0.001372

30–31 . . . . . . . . . . . . 0.001399

non hispanic white population

29–30 . . . . . . . . . . . . 0.001083

30–31 . . . . . . . . . . . . 0.001116

non hispanic white males

29–30 . . . . . . . . . . . . 0.001477

30–31 . . . . . . . . . . . . 0.001503

jacob, non hispanic white male. 30 years old.

probability that jacob lives to be 30 years old. 

since the given probabilities are probabilities of dying, i think we simply subtract it from 1 to get the probability of living. we will use the probability of non hispanic white male.

                                          probability of living to be 30 y.o.

29 - 30 : 1 - 0.001477 = 0.998523

30 - 31 : 1 - 0.001503 = 0.998497